diff --git a/src/afsd/afsd.c b/src/afsd/afsd.c
index 87f1615f31..0be921ef93 100644
--- a/src/afsd/afsd.c
+++ b/src/afsd/afsd.c
@@ -353,6 +353,9 @@ struct afs_cacheParams cparams;	/* params passed to cache manager */
 static int HandleMTab(void);
 int PartSizeOverflow(char *path, int cs);
 
+/* for now, not prototyped fully as it can't be */
+int call_syscall();
+
 #ifdef AFS_DARWIN_ENV
 static void
 afsd_sleep_callback(void * refCon, io_service_t service,